Enhanced NO2 sensing properties of Zn2SnO4-core/ZnO-shell nanorod sensors
Source abstract
Abstract
Abstract Zn 2 SnO 4 -core/ZnO-shell nanorods were synthesized using a two-step process: synthesis of Zn 2 SnO 4 nanorods the thermal evaporation of a mixture of ZnO, SnO 2 , and graphite powders, followed by atomic layer deposition (ALD) of ZnO. The nanorods were 50–250 nm in diameter and a few to a few tens of micrometers in length. The cores and shells of the nanorods were face-centered cubic-structured single crystal Zn 2 SnO 4 and wurtzite-structured single crystal ZnO, respectively. The multiple networked Zn 2 SnO 4 -core/ZnO-shell nanorod sensors showed a response of 173–498% to NO 2 concentrations of 1–5 ppm at 300 °C. These response values are 2–5 times higher than those of the Zn 2 SnO 4 nanorod sensor over the same NO 2 concentration range. The NO 2 sensing mechanism of the Zn 2 SnO 4 core/ZnO-shell nanorods is discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · ZnO doping and properties · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Optical absorption and photoconductivity in the band edge of b-Ga2O310.1103/PhysRev.140.A316 ↗
2. H2S gas sensing properties of bare and Pd-functionalized CuO nanorods10.1016/j.snb.2011.11.006 ↗
3. CO gas sensing properties of ZnO–CuO composite10.1016/S0925-4005(97)00317-1 ↗
4. Electrical and CO gas sensing properties of ZnO–SnO2 composites10.1016/S0925-4005(98)00275-5 ↗
5. Electrical and reducing gas sensing properties of ZnO and ZnO–CuO thin films fabricated by spin coating method10.1016/S0925-4005(99)00038-6 ↗
6. Electrical and CO gas-sensing properties of ZnO/SnO2 hetero-contact10.1016/S0925-4005(99)00280-4 ↗
7. Electrical and CO gas sensing properties of layered ZnO–CuO sensor10.1016/S0925-4005(00)00519-0 ↗
8. Current–voltage characteristics and selective CO detection of Zn2SnO4 and ZnO/Zn2SnO4, SnO2/Zn2SnO4 layered-type sensors10.1016/S0925-4005(00)00642-0 ↗
9. Nanostructured zinc stannate as semiconductor working electrodes for dye-sensitized solar cells10.1021/jp0678756 ↗
10. Single crystalline zinc stannate nanoparticles for efficient photo-electrochemical devices10.1039/b921010e ↗
11. Zinc stannate (Zn2SnO4) dye-sensitized solar cells10.1021/ja070804f ↗
12. Spray pyrolysis preparation and humidity sensing characteristics of spinel zinc stannate thin films10.1006/jssc.1996.7174 ↗
13. Electric transport, reversible wettability and chemical sensing of single-crystalline zigzag Zn2SnO4 nanowires10.1039/c1jm13579a ↗
14. Synthesis and ethanol sensing characteristics of single crystalline SnO2 nanorods
15. Ceria-doped SnO2 sensor highly selective to ethanol in humid air10.1016/j.snb.2007.10.018 ↗
16. Isobutane gas sensing characteristics of zinc–tin complex oxide system
17. NO sensitivity of spinel type Zn2SnO4 spray deposited films10.1002/(SICI)1521-396X(199806)167:2<R11::AID-PSSA999911>3.0.CO;2-8 ↗
18. NO2 sensing properties of thick Zn2SnO4 film10.2109/jcersj.103.302 ↗
19. Doping effect of SnO2 on gas sensing characteristics of sputtered ZnO thin film chemical sensor10.1016/S0925-4005(97)80101-3 ↗
20. Selective CO gas detection of Zn2SnO4 gas sensor10.1023/A:1020810503321 ↗
21. Synthesis and gas sensing properties of α-Fe2O3@ZnO core-shell nanospindles10.1088/0957-4484/22/18/185501 ↗
22. Core-shell α-Fe2O3@SnO2/Au hybrid structures and their enhanced gas sensing properties10.1039/C1RA00811K ↗
23. Gold-nanotube membranes for the oxidation of CO at gas–water interfaces10.1002/ange.200353238 ↗
24. Hybridization-modulated ion fluxes through peptide–nucleic-acid-functionalized gold nanotubes
25. Helical gold nanotube synthesized at 150K10.1103/PhysRevLett.91.205503 ↗
26. Synthesis of nanograined ZnO nanowires and their enhanced gas sensing properties10.1021/am300741r ↗
27. Contact-controlled sensing properties of flowerlike ZnO nanostructures10.1063/1.2135391 ↗
28. Conductance, work function and catalytic activity of SnO2-based gas sensors10.1016/0925-4005(91)80007-7 ↗
29. Co and NO2 gas sensitivity of nanocrystalline tin dioxide thin films doped with Pd, Ru and Rh10.1016/S0928-4931(02)00068-1 ↗
30. Grain size effects on gas sensitivity of porous SnO2-based elements10.1016/0925-4005(91)80207-Z ↗
31. Synthesis and enhanced ethanol sensing properties of α-Fe2O3/ZnO heteronanostructures10.1016/j.snb.2009.04.011 ↗
32. Hall measurement studies and an electrical conduction model of tin oxide ultrafine particle films10.1063/1.331230 ↗
33. Conduction model of metal oxide gas sensors10.1023/A:1014405811371 ↗
34. Grain size effects on gas sensitivity of porous SnO2-based elements10.1016/0925-4005(91)80207-Z ↗
35. Synthesis and enhanced ethanol sensing properties of α-Fe2O3/ZnO heteronanostructures10.1016/j.snb.2009.04.011 ↗
36. Hall measurement studies and an electrical conduction model of tin oxide ultrafine particle films10.1063/1.331230 ↗
37. Conduction model of metal oxide gas sensors10.1023/A:1014405811371 ↗
38. Barrier-controlled carrier transport in microcrystalline semiconducting materials: Description within a unified model10.1063/1.1488246 ↗